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J. F; SNEDIKER. SEWING MACHINE ATTACHMENT-.7

Patented May 23,

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WiZiidJC S N. PETERS. PhnlO-Lifihogmpher. Washington, D. C.

NITED STATES PATENT Darren.

JAMES F. SNEDIKER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO JOHN 0.LOVE, OF SAME PLACE.

SEWING-MACHINE ATTACHMENT.

SPECIFICATION forming part of Letters Patent N 0. 258,490, dated May 23,1882.

Application filed August 29, 1878.

To all whom it may concern:

Be it known that I, JAMES F. SNEDIKER, of Philadelphia, Pennsylvania,have invented a new and useful Improvement in Sewing-MachineAttachments, of which the following is a specification.

My invention relates to an improvement in that class of sewing-machineattachments in which the needle has a lateral reciprocating motionimparted to it for the purpose of making lateral or zigzag stitching,working button-holes, &c., the object'of my invention being to constructan attachment of this class of a simpler and more effective characterthan usual. This object I attain in the manner which I will now proceedto describe, reference being had to the accompanying drawings, in whichFigure 1 is a perspective view of my attachlnent; Figs. 2, 3, 4, and 5,side views, partly in section, showing the moving parts of the device indifferent positions; and Fig.6, a front view of the device.

A represents the head of an ordinary sewing-machine-a Singer machine,for instance-and B the needle-bar of the same, the latter beingreciprocated vertically by the usual mechanism, which it has not beendeemed necessary to show or describe.

To the lower end of the needle-bar is secured a block, D, grooved forthe reception and lateral guidance of a slide, a, in the under side ofwhich are formed openings for the reception and retention of one or moreneedles, a.

On the back of the slide a is formed a rib, to a recess in which isadapted the wedgeshaped lower end of a lever, F, the latter beingpivoted to a bearing, (1, formed on or secured to the block D.

To the front of the head A is secured a plate, J, to which is pivoted alever, 0, having three arms, 1', i, and i the arms i and i being atright angles, or thereabout, to the arm i. The arm i is wedge-shaped,and the arms i and t have inclined upper sides, so that the top of thelever 6 presents a blunt wedge-shaped surface, upon which acts, asdescribed hereinafter, a spring-stud, m, arranged to slide in a tubularprojection, n, of the plate J.

The operation of the device is as follows: When the parts are in theposition shown in Fig. 2 the needle-bar has just commenced to rise. Asthe said bar rises the upper end of the lever F strikes the innerinclined face of the arm 71 of the lever e, and is thereby moved inward,the lower end of the lever F thus imparting a lateral movement in areverse direction to the needle-carrying slide a. This movementcontinues until the upper end of the lever F strikes the under side ofthe arm i of the lever e, as shown in Fig. 3. The upward movement of theneedle-bar still continuing, the result will be the turning of the levere in the direction of the arrow until it assumes the position shown inFig. 4-that is to say, with the apex of its wedge-like upper surfaceslightly beyond the centerof the springstud m. The needle-bar nowdescends, and as soon as the upper end of the lever F has cleared thelower end of the arm iof the lever e the action of the spring-stud m onthe upper end of said lever causes it to assume the position shown inFig. 5, so that on the next upward movement of the needle-bar the outerinclined surface of the arm twill act on the upper end of the lever F,and a lateral movement in a direction contrary to that above describedwill be imparted to the needle-carrying slide a, while the reversal ofthe position of the lever e will be effected by the action of the upperend of the lever F upon the arm t" of the said lever e.

The above-described device is simple and inexpensive, and can be readilyapplied to an ordinary machine without necessitating mate rial change ofthe latter.

It is not absolutely essential that the construction shown and describedshould be adhered to in every case. For instance, the lever 6 might beacted on by different forms of springs and the slide a might have arigid upwardly-projecting arm, upon which the arm 2 of the lever 6 mightact to reciprocate the slide, and by which the arms 1" and 1' of thelever might be acted upon in order to shift the position of said lever.

I claim as my invention 4 A sewing-machine attachment in which a pivotedspring-lever, 0, having three arms, as described, is combined with aneedle-carrying slide and an arm or lever for acting on and being actedon by the said lever e, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JAS. F. SNEDIKER. VVItncsSes HARRY A. CRAWFORD, HARRY SMITH.

